\name{insert}
\alias{insert}
\title{Insert an item into a list...}
\usage{insert(x, item=as.null(), after)}
\description{Insert an item into a list}
\details{Inserts the item after the position of after. If item is not specified nothing will be inserted.}
\value{The list with the inserted item.}
\arguments{\item{x}{the list into which item will be inserted}
\item{item}{an R object to be inserted into the list x}
\item{after}{the R object after which the item should be inserted, if there are multiple objects the new item will be inserted after the first occurrence of the object}}
